CpG DNA modulates interleukin 1β-induced interleukin-8 expression in human bronchial epithelial (16HBE14o-) cells
2006
CpG DNA and IL-1β's Effect on IL-8 in Human Bronchial Cells
Sample size: 6
publication
Evidence: moderate
Author Information
Author(s): N William Parilla, Valerie S Hughes, Kristin M Lierl, Hector R Wong, Kristen Page
Primary Institution: Cincinnati Children's Hospital Medical Center
Hypothesis
CpG DNA would potentiate the IL-1β response in bronchial epithelial cells.
Conclusion
CpG modulates IL-8 synthesis in the presence of IL-1β by activating TLR9 and stabilizing IL-8 mRNA.
Supporting Evidence
- CpG increased IL-1β-induced IL-8 protein abundance.
- Silencing TLR9 abolished CpG-induced synergy.
- CpG treatment increased the half-life of IL-8 mRNA.
Takeaway
When certain DNA from bacteria is present, it helps our lung cells make more of a protein called IL-8, especially when there's another signal from the body telling them to do so.
Methodology
The study used RT-PCR, Western blot analysis, ELISA, and siRNA techniques to assess the effects of CpG on IL-8 expression in bronchial epithelial cells.
Statistical Information
P-Value
p = 0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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